Rotary brush



April 13, 1943.

- R. O. P ETERSON ROTARY BRUSH v Filed May 14, 1940 INVENTOR. RUBEN O.PETERSON ATTORNEYS this invention;

Patented Apr. 13, 1943 ROTARY BRUSH Ruben 0. Peterson, South Euclid, Ohio, assignor to The Osborn Manufacturing Company,

Cleveland, Ohio, a corporation of Ohio Application May 14, 1940, Serial No. 335,068

14 Claims.

This invention relates, as indicated, to brushes and more particularly to rotary brushes of the type in which several sections are assembled on a mandrel into a cylindrical brush which for all substantial purposes i unitary,

It is often desired to assemble rotary brush sections on an arbor or mandrel so as to form brushes of varying lengths to suit the particular use contemplated. As a general practise such sections are held together and prevented from rotating relatively to each other merely by the pressure of locking rings fixed at either end of the assembled brush. Various other clamping means have also been employed but such are usually troublesome, difficult of adjustment, and may require special construction of the brush sections.

It is, therefore, a primary object of this invention to provide an adapter for rotary brush sections and a method of interconnecting brush sections which will not add to the cost of manufacture of the finished brush but will be effective to lock such sections together. 7

It is also an object of this invention to provide adapters for the sections which 'will serve to carry, space and lock said sections.

A further object is to provide an adapter'having the aforementioned advantages and which may be stamped from a single sheet of metal.

stituting, however, but one of various structural forms in which the principle of the invention may be used. 7

i In said annexed drawing:

. Fig. 1 is a cross-sectional view of a single rotary brush section mounted upon the adapter of this invention;

Fig.2 is a cross-sectional View along the line 1-2 of Fig. of a plurality of brush sections mounted on adapters in accordance with this invention and showing an end flange also in section;

Fig. 3 is a cross-sectional view along the line 33 on Fig. 5;

Fig. 4 is a perspective view of the adapter of Fig. 5 is a side elevational view of twogormore rotary brush sections mounted on adapters in accordance with this invention; and

Fig. 6 is a fragmentary side view of a preferre form of end flange adapted to support the brush. Broadly stated, this invention comprises the method of interlocking rotary brush sections by mounting the same on adapters which also embrace another section. More specifically, this invention contemplates the use of adapters having arms on one side sufficiently long to extend under and embrace the far side of one or more adja cent sections.

Referring now more particularly to the drawing, the typical rotary brush sections there shown comprise channel shaped rings I in which bristles 2 are held by a wire 3, or like retaining means.

For the purpose of fitting and supportingthe opposite direction. The brush section is prevented from sidewise movement by the upset ends ill of arms 5. When but a single sectionis to be mounted as shown in Fig. 1, the portions ll of arms 8 between notches l2 and I3 are bent outwards to embrace said section and the portion l4 may be cut ofi. The notches serve'merely to render the bending more easy.

When, however, the adapters are employed to support a plurality of sections in interlocked relationship the portions I l of arms 8' extend beneath the next adjacent section as shown in Figs. 2 and 3 and the ends l4 are upset to embrace said adjacent section. T

It will be understood that these arms Il may extend as far as may be desired to embrace a :number of sections, but for mostpurposes it will be sufficient to engage merely the next section in succession. i

As best seen in Figs. 4 and 5, there is ample space between the arms of the adaptor for passage of the axially extended portions of arms 8 of an adjacent adaptor. These same openings greatly aid in ventilating and cooling the brush in use and the web 6 may likewise be perforated or skeletonized to assist in this purpose. It is, of course,

obvious that arms 5 and 8 could be bent axially immediately as they'leave the web since a pace equalto the thickness of the arms is all that is required to permit the passage of arms 8 to embrace an adjacent section. Generally, however, the ventilating effect is desired and is further enhanced by the fact that the upset ends l0 and 14 of the arms 5 and 8 act as spacers between the sections permitting an outward flow of air drawn in through the spaces between said arms.

A brush may thus be built up of any number of sections, the adapter of the final one having the ends I4 cut off and the portions l I upset as in the case of the individual section shown in Fig. l, The completed brush may be secured on the arbor or mandrel by means of nuts, washers and locking-rings.

As illustrated in Figs. 2 and 6, end flanges of novel design are preferably employed. inconjunction with the brushes of my invention to support the respective sides of such brushes on the man; drel. Such flanges may comprise unitary castings of a light metal such as an aluminum alloy having a centrally di osed opening l5 adapted; to fit a mandrel and a plurality of apertures L6, located in an annular zone lying immediately within the channelbase of the brush supported thereby. Such channel bases are; supported on; annularly disposed seats H on said flanges, It will be understood that one or more brush sections maybe supported on the mandrel by said flanges, the latter being held-tightly in; position by means of large nuts threaded on the mandrel.

Among the advantages arising out of my inven tion are greater ease of brush assembly, low cost, lack of relative movement oi brush sections, and continuous ventilation. duringuse When employing flanges as above described the; apertures m y desirably be o d s d as tu e in ali nmen with the ventilatingopenings provided by the adapters.

other o of p n e p nc e of: my invention may be employed instead of the one explained, change being made as regards the Structure herein disclosed, provided the means stated by any of the following claims or the equiv.- a-lent of such stated means be employed.

I, therefore, particularly point out and distinctly claim as my invention:

1. A rotary brush comprising a plurality of-annular brush sections mounted on disc-shaped adapters, said adapters having peripheralsectionsupporting arms on one side serving tov embrace adjacent sections, and said arms. extending radially beyond the body of the adapterwhereby ven brush sections on a mandrel or the like, comprising a body portion having a centrally disposed opening, aplurality of arms extending radially from said body portion, off-set portions. Qf' said arms adapted to seat theinner peripheryof an annular brush section, certain of said arms being offs t n a ir io pp si o he OfisetsQiFcfiB- tain others 015 said arms, end portions or arms.

offset; in one direction bein bent substantially radially to embrace one side of such section, and arms ofiset in the other direction being of suincient length to embrace at least one adjacent brush section.

4. An adapter for mounting annular rotary brush sections on a mandrel or the like, comprising a disc-like web portion having a centrally disposed opening therein, and section supporting arms extending radially from said said web portion, adjacent arms being axially bent in opposite directions to seat the inner periphery of an annular rotary brush section and the arms thus bent in one direction being further bent in a radial direction to provide stops for locating a brush I section thereon.

5. A rotary-brush comprising a plurality of annular brush sections, a plurality of disc-shaped adapters for mounting said. sections on a mandrel or the like, ofiset arms on said adapters adjacent the peripheries thereof seating the inner peripheries of said sections, certain of said of!- set arms seating and embracing a, plurality of sections.

6. An annular brush component suitable for mounting on a mandrel or the.like, comprising a plurality of. annular brush sections and. a plurality of disc-like. supporting members provided with extensions engaging. the inner peripheries of two or more adjacent sections in staggered succession and embracing the. sides of said sections to interlock the same. j 7 An adapter for mounting annular rotary brush sections on a mandrel or the like, comprising a web portion, arms. extending radially from said web portion adapted to engage one side of a brush section, and other arms extending radially from said web portion and then axially thereof to seat such. section.

8. An, adapter for mounting annular rotary brush sectionson a mandrel or the like, comprising a webportion, arms extending radially from said web portion adapted to engage one side. of an annular brush section, and other arms extending radially from saidweb portion and then axially thereof to seat such section and at least one adjacent section at their inner peripheries, the end portions of said other arms being turned radially to embrace such adjacent section.

9. A rotary brush comprising a web member adapted to be mounted on a mandrel or the like, arms extending radially from said web member adaptedto engage one side of an annular brush 7 section, other arms extending radially from said web member and then axially thereof, and: a plurality of annular brush sections seated at their inner peripheries on such axial extensions, the end portions of such extensions being turned radially to cooperate with said first named arms to retain said sections therebetween. U 7

10. An annular brush componentcomprising at least one annular brush section and at least one adapter for mounting said section on a mandrel or the-like, said. adapter comprising a body portion of sheet material having a centrally disposd opening through which such mandrel or the like is adapted to. pass, and arms extending radially from said body portion and provided with axial ofisets seating said annular brush section, said axial offsets being radially spaced from said body portion to provide openings between said body portion andsaid annular brush section for the passage of cooling air.

11. An annular brush component suitable for mounting on a mandrel or the like, comprising a plurality of annular brush sections, atleast one disc-shaped adapter having a centrally disposed opening through which such mandrel or the like is adapted to pass, and arms extending axially from adjacent the periphery of said adapter within the inner peripheries of said annular brush sections and embracing a plurality of said sections.

12. An adapter for mounting annular rotary brush sections on a mandrel or the like, comprising a disc-like body portion having a centrally disposed opening therein, and a plurality of integral arms spaced about the circumference of said body, alternatearms being offset laterally in opposite directions and then extending radially, whereby a clamping seat is provided for one or more such brush sections.

13. An adapter for mounting annular rotary brush sections on a mandrel or the like, comprising a disc-like body portion having a centrally disposed opening therein, and a plurality of integral arms spaced about the circumference oi said body, certain of said arms being offset laterally a fixed distance to one side of said body and then extending radially outwardly, and intervening arms being offset laterally to the other side of said body, said last-named arms being formed for outward bending at successively spaced distances, whereby a clamping seat may be provided for one or more such brush sections, as desired.

14. A rotary brush comprising in combination an annular rotary brush section having a channel-form back with brushing material extending substantially radially therefrom, and annular side flanges adapted to be mounted on a mandrel or the like and engage the respective sides of said brush section, said flanges being provided with annularly disposed seats adapted to seat the inner periphery of said section and having apertures located in an annular zone lying immedi- 20 ately radially within said seats.

RUBEN O. PETERSON. 

